Affymax (NASDAQ: AFFY) shares dropped 84.02% to create a new 52-week low of $2.64. Affymax and Takeda Pharmaceutical Company decided to voluntarily recall all lots of OMONTYS® Injection.

Cyanotech (NASDAQ: CYAN) shares fell 0.93% to touch a new 52-week low of $4.46. Cyanotech shares have dropped 46.24% over the past 52 weeks, while the S&P 500 index has gained 10.82% in the same period.